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8711572 
Meetings & Symposia 
ISOTOPIC TRACERS IN CATALYSIS: AROMATICS FROM n-PARAFFINS OVER Te-NaX ZEOLITE 
Hightower, JW; Price, GL 
1984 
ACS 
Washington, DC, USA 
29 
722-727 
English 
Experimental data are presented which demonstrate that the Te-NaX zeolite is a highly selective catalyst for converting n-paraffins (C//6 or larger) into aromatics. The presence of the Na probably reduces the inherent acidity to the point where skeletal isomerization and cracking do not occur to any appreciable extent. Olefins are intermediates in the reaction. However, cyclohexane is not a reaction intermediate, even though it can be quantitatively converted into benzene under reaction conditions. The rate limiting step is cleavage of C-H bonds. The reaction is actually a combination of catalytic dehydrogenation reactions and a non-catalytic cyclization step.